31486360

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{73}}^1\times {\mathrm{263}}^1$

素因数の和:388

約数の個数: 64

約数和(自身を含む): 73846080

約数和(自身を除く): 42359720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 73, 82, 146, 164, 205, 263, 292, 328, 365, 410, 526, 584, 730, 820, 1052, 1315, 1460, 1640, 2104, 2630, 2920, 2993, 5260, 5986, 10520, 10783, 11972, 14965, 19199, 21566, 23944, 29930, 38398, 43132, 53915, 59860, 76796, 86264, 95995, 107830, 119720, 153592, 191990, 215660, 383980, 431320, 767960, 787159, 1574318, 3148636, 3935795, 6297272, 7871590, 15743180, 31486360]

約数ペア:

[(1, 31486360), (2, 15743180), (4, 7871590), (5, 6297272), (8, 3935795), (10, 3148636), (20, 1574318), (40, 787159), (41, 767960), (73, 431320), (82, 383980), (146, 215660), (164, 191990), (205, 153592), (263, 119720), (292, 107830), (328, 95995), (365, 86264), (410, 76796), (526, 59860), (584, 53915), (730, 43132), (820, 38398), (1052, 29930), (1315, 23944), (1460, 21566), (1640, 19199), (2104, 14965), (2630, 11972), (2920, 10783), (2993, 10520), (5260, 5986)]